is there any way i can use crossview3d while editing?
for blender v2.79 you can try this:


in the properties editor switch to 'Render Layers'
than activate 'views'
this defaults to 'Stereo 3D'
now go to the main menu 'Window' there is a new option 'Set Stereo 3D' - click it
here you can find multiple different ways - one is 'Side-by-Side'
if you choose it you can additionally enable 'Cross-Eyed'


for this to work you have to enter Full-Screen mode (Alt+F11). 

additional information can also be found in this answer
and in the official documentation on multi-views